This is a DeWalt DWAFEXTRACT3 3-Piece Screw Extractor Set. It uses a standard 1/4" Hex and is Impact Ready. Tip of extractor end is serrated for increased torque to remove the toughest screws and bolts.

Brand: DeWalt
Type: Screw Extractor
Number of Pieces: 3
Manufacturer Part Number: DWAMIEXTRACT3
Set or Single Item: Set
Drive: 1/4" Hex
UPC: 885911720533